La aasaasay 2004, Shijiazhuang Sanxing Dharka Co., Ltd. waa saaraha xirfadeed ee dhar-biyoodka kala duwan oo ku yaalla Degmada Luquan, Shijiazhuang City, Gobolka Hebei, Shiinaha.Iyada oo in ka badan 20 sano oo waayo-aragnimo ah ee soo saarista roobabka iyo roobabka, shirkadeena hadda waxay leedahay aqoon-is-weydaarsi wax-soo-saarka 2,000 mitir oo laba jibbaaran, maamulayaasha 4, 10 shaqaale adeegga iibka ah, 5 naqshadeeyayaasha, 10 kormeerayaasha tayada alaabta iyo 200 shaqaale xirfad leh ka dib dadaal joogto ah.Warshadayadu waxay leedahay khad wax soo saar oo dhamaystiran oo ah goynta, daabacaadda, tolida, dhejinta, kormeerka, laalaabida iyo baakaynta, nidaamka xakamaynta tayada dhamaystiran, iyo sidoo kale shahaadada kormeerka warshadda BSCI.Waxaan bixin karnaa alaab tayo sare leh.Alaabooyinkayaga ugu muhiimsan waxaa ka mid ah dhar kala duwan oo aan biyuhu karin, sida koofiyadaha roobaadka, koofiyadaha roobaadka, faashado iyo dharka rinjiyeynta oo ka samaysan PVC kala duwan, EVA, PEVA iyo TPU.